Purple Reign! Duchess Meghan looked in high spirits at her first appearance since the airing of the Sussex ITV documentary as she arrived to the One Young World Summit at Royal Albert Hall in London.

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Meghan selected to wear a dress from her closet–the Aritzia Babaton “Maxwell” dress that she wore with Prince Harry in Birkenhead in January. The maxi style is cut from matte satin and expertly tailored for a flattering, feminine shape. The dress is currently sold out.

Instead of opting for her bright red Stuart Weitzman ‘Leigh’ pumps — she opted for navy suede Manolo Blahnik BB heels.

Tonight Meghan will speaking in front of a full house at Royal Albert Hall. The duchess is vice-president of the Queen’s Commonwealth Trust, which is partnering with One Young World to bring 53 young leaders to the summit.

Meghan previously attended the summit in her pre-royal life.

The duchess received a standing ovation when she took to the stage to give a speech.